https://github.com/linbox-team/fflas-ffpack
Tip revision: 432071cb5f212d683607ab8f8ff42d31b437fc4a authored by Clement Pernet on 30 July 2016, 17:26:20 UTC
preparing release
preparing release
Tip revision: 432071c
benchmark-dtrtri.C
/* -*- mode: C++; tab-width: 8; indent-tabs-mode: t; c-basic-offset: 8 -*- */
// vim:sts=8:sw=8:ts=8:noet:sr:cino=>s,f0,{0,g0,(0,\:0,t0,+0,=s
/* Copyright (c) FFLAS-FFPACK
* Written by Clément Pernet <clement.pernet@imag.fr>
* ========LICENCE========
* This file is part of the library FFLAS-FFPACK.
*
* FFLAS-FFPACK is free software: you can redistribute it and/or modify
* it under the terms of the GNU Lesser General Public
* License as published by the Free Software Foundation; either
* version 2.1 of the License, or (at your option) any later version.
*
* This library is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
* Lesser General Public License for more details.
*
* You should have received a copy of the GNU Lesser General Public
* License along with this library; if not, write to the Free Software
* Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
* ========LICENCE========
*/
#include "fflas-ffpack/fflas-ffpack-config.h"
#include <iostream>
#include <givaro/modular.h>
#define __FFLASFFPACK_HAVE_DTRTRI 1
#include "fflas-ffpack/fflas-ffpack.h"
#include "fflas-ffpack/utils/timer.h"
#include "fflas-ffpack/utils/Matio.h"
#include "fflas-ffpack/utils/args-parser.h"
#ifdef __FFLASFFPACK_USE_OPENMP
typedef FFLAS::OMPTimer TTimer;
#else
typedef FFLAS::Timer TTimer;
#endif
using namespace std;
int main(int argc, char** argv) {
size_t iter = 1;
int q = 1009;
size_t n = 2000;
std::string file = "";
Argument as[] = {
{ 'q', "-q Q", "Set the field characteristic (-1 for random).", TYPE_INT , &q },
{ 'n', "-n N", "Set the dimension of the matrix.", TYPE_INT , &n },
{ 'i', "-i R", "Set number of repetitions.", TYPE_INT , &iter },
{ 'f', "-f FILE", "Set the input file (empty for random).", TYPE_STR , &file },
END_OF_ARGUMENTS
};
FFLAS::parseArguments(argc,argv,as);
typedef Givaro::Modular<double> Field;
typedef Field::Element Element;
Field F(q);
Element * A;
TTimer chrono;
double time=0.0;
Field::RandIter G(F);
for (size_t i=0;i<iter;++i){
if (!file.empty()){
A = read_field (F, file.c_str(), &n, &n);
} else {
A = FFLAS::fflas_new<Element>(n*n);
for (size_t j=0; j<(size_t) n*n; ++j)
G.random(*(A+j));
}
for (size_t k=0;k<(size_t)n;++k)
while (F.isZero( G.random(*(A+k*(n+1)))));
chrono.clear();
chrono.start();
clapack_dtrtri(CblasRowMajor,CblasUpper, CblasNonUnit,n,A,n);
chrono.stop();
time+=chrono.usertime();
FFLAS::fflas_delete( A);
}
// -----------
// Standard output for benchmark - Alexis Breust 2014/11/14
std::cout << "Time: " << time / double(iter)
<< " Gflops: " << (2.*double(n)/1000.*double(n)/1000.*double(n)/1000.0) / time * double(iter) / 3.;
FFLAS::writeCommandString(std::cout, as) << std::endl;
return 0;
}